When you rock some awesome pythons, the competition starts shaking--make it official with a pair of Hutchinson Python 29er Mountain Bike Tires. These are light and fast and feature the perfect mix of performance and grip. The central part of the tire has low, linked knobs for lower rolling resistance, while the intermediate knobs allow more aggressive cornering. The Synthetic Rubber Compound (SBR) increases mileage and performance so you can finish strong ride after ride. * Wire Bead